3972 datasheet(3/12 Pages) ALLEGRO

номер детали	3972

подробное описание детали	DUAL DMOS FULL-BRIDGE MICROSTEPPING PWM MOTOR DRIVER

PDF	12 Pages

Scroll/Zoom	100%

производитель	ALLEGRO [Allegro MicroSystems]

домашняя страница	http://www.allegromicro.com

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3 / 12 page

3972

DUAL DMOS FULL-BRIDGE

MICROSTEPPING PWM MOTOR DRIVER

www.allegromicro.com

ELECTRICAL CHARACTERISTICS at T

A = +25°C, VBB = 50 V, VDD = 5.0 V, VS = 0.5 V,

PWM < 50 kHz (unless otherwise noted).

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Load Supply Voltage Range

Operating

—

During sleep mode

—

Logic Supply Voltage Range

Operating

4.5

5.0

5.5

Load Supply Current

PWM < 50 kHz

—

8.0

Operating, outputs disabled

—

6.0

Sleep or idle mode

—

µA

Logic Supply Current

PWM < 50 kHz

—

Outputs off

—

Idle mode (D0 = 1, D18 = 0)

—

1.5

Sleep mode

—

100

µA

Output Drivers

Output Leakage Current

DSS

OUT = VBB

—

<1.0

µA

OUT = 0 V

—

<-1.0

-50

µA

Output On Resistance

DS(on)

Source driver, I

OUT = –1.5 A

—

0.5

0.55

Ω

Sink driver, I

OUT = 1.5 A

—

0.315

0.35

Ω

Body Diode Forward Voltage

Source diode, I

F = 1.5 A

—

1.2

Sink diode, I

F = 1.5 A

—

1.2

Control Logic

Logic Input Voltage

IN(1)

2.0

—

IN(0)

——

0.8

Logic Input Current

IN(1)

IN = 2.0 V

—

<1.0

µA

IN(0)

IN = 0.8 V

—

<-2.0

-20

µA

OSC Input Frequency Range

OSC

Divide by one

2.5

—

6.0

MHz

(D0 =1, D13 = 0, D14 = 1)

OSC Input Duty Cycle

—

Input Hysterisis

∆V

0.20

—

0.40

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